Answer:
y = -x + 3
Explanation:
1. Substitute "y = -x + 3" in for y in the second expression:
2x + 2(-x + 3) = 6
2. Simplify:
2x + (-2x) + 6 = 6
0 + 6 = 6
6 = 6
Because the values are equal, the solution of y = -x + 3 is a valid input.
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